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-rw-r--r--indra/newview/llviewerobject.cpp19
1 files changed, 18 insertions, 1 deletions
diff --git a/indra/newview/llviewerobject.cpp b/indra/newview/llviewerobject.cpp
index 9027caa4ce..6d93de2383 100644
--- a/indra/newview/llviewerobject.cpp
+++ b/indra/newview/llviewerobject.cpp
@@ -762,7 +762,24 @@ U32 LLViewerObject::processUpdateMessage(LLMessageSystem *mesgsys,
// Coordinates of objects on simulators are region-local.
U64 region_handle;
mesgsys->getU64Fast(_PREHASH_RegionData, _PREHASH_RegionHandle, region_handle);
- mRegionp = LLWorld::getInstance()->getRegionFromHandle(region_handle);
+
+ {
+ LLViewerRegion* regionp = LLWorld::getInstance()->getRegionFromHandle(region_handle);
+ if(regionp != mRegionp && regionp && mRegionp)//region cross
+ {
+ //this is the redundant position and region update, but it is necessary in case the viewer misses the following
+ //position and region update messages from sim.
+ //this redundant update should not cause any problems.
+ LLVector3 delta_pos = mRegionp->getOriginAgent() - regionp->getOriginAgent();
+ setPositionParent(getPosition() + delta_pos); //update to the new region position immediately.
+ setRegion(regionp) ; //change the region.
+ }
+ else
+ {
+ mRegionp = regionp ;
+ }
+ }
+
if (!mRegionp)
{
U32 x, y;